Looking for an Acrobits alternative? Compare Spanvox
Acrobits is a capable, established white-label softphone. Spanvox takes a different shape: a managed platform that bridges to your existing PBX with no trunk, ships under your own developer accounts, and rings reliably, with the carrier-grade infrastructure behind it.
- No-trunk bridge
- Your own dev accounts
- BYOD SIP
- Free to try
Spanvox vs Acrobits, at a glance
| Spanvox | Acrobits | |
|---|---|---|
| Connect to your PBX | Registration bridge: no trunk, no dialplan change | App and SDK; the SIP/backend integration is yours |
| Ships under your accounts | Your Apple & Google accounts, your APNs/FCM identity | White-label apps |
| Push that wakes the app | Server-side registration + APNs/FCM, CallKit & ConnectionService | Supported |
| BYOD SIP endpoints | Desk phones, ATAs and the app on one account | App-focused |
| Multi-tenant provisioning | Idempotent REST API, webhooks and CDRs | Via SDK / your integration |
| Platform & operations | Redundant nodes, GeoDNS, real-time observability, 24/7 NOC | Vendor-operated |
| Pricing | Free sandbox, then per seat | Sales-led |
Reflects Spanvox’s capabilities and publicly available information about Acrobits as of 2026. Verify current details with each vendor.
A managed platform, not just an app
The bridge model
Spanvox registers to your PBX like a softphone, so there is no trunk, no dialplan edit and no firewall change. You are not wiring up a backend, you are turning on a service.
Your own dev accounts
Apps ship under your Apple Developer and Google Play accounts with your own APNs and FCM identity, so the app and its push are entirely yours.
Push, explained
Reliable ringing is server-side registration plus VoIP push through CallKit and ConnectionService, an architecture we describe, not just assert.
BYOD SIP, not only an app
Register desk phones, ATAs and third-party SIP clients alongside the branded app, on the same account.
API-first, multi-tenant
An idempotent REST API with webhooks and CDRs to provision tenants and endpoints, built for automation, not clicks.
Transparent pricing
Start free in a sandbox and scale per seat, instead of gating every number behind a demo.
Carrier-grade under the hood, watched around the clock
The parts that decide whether you can build a business on us: a globally redundant network, real security, and a team that never sleeps. Serious infrastructure for serious operators.
Globally redundant node pool
Registrations and calls run on a pool of redundant nodes across regions, on an anycast backbone. There is no single point of failure: if a node degrades, traffic shifts the same second.
GeoDNS routing & failover
GeoDNS steers every device to the nearest healthy node and reroutes automatically on failure, so latency stays low and outages stay invisible to your customers.
VoIP security, end to end
TLS and WSS signalling, SRTP and DTLS media, terminated on hardened Session Border Controllers. Credentials are encrypted at rest and never exposed to the device.
Toll-fraud protection
Per-endpoint concurrency caps, registration rate-limiting and automatic IP banning contain abuse before it ever reaches a bill, the number-one worry for any ITSP.
Observability as standard
A real-time view of every registration leg, live device, call and CDR with MOS scoring. It ships with the platform, not as a paid add-on.
24/7 NOC
A network operations centre watches the platform around the clock, with proactive response, so problems are caught and fixed before your customers ever feel them.
Acrobits alternative, answered
What is the best white-label alternative to Acrobits?
It depends on your stack, but providers who want a no-trunk bridge to an existing PBX, apps under their own developer accounts, BYOD SIP support and transparent pricing choose Spanvox. Acrobits is strong but more of an app and SDK than a managed bridge.
How is Spanvox different from Acrobits?
Spanvox bridges to your PBX by registering like a softphone, with no trunk or dialplan change, ships under your own Apple/Google and APNs/FCM identity, supports BYOD SIP endpoints, and exposes an idempotent provisioning API. It also publishes a directional pricing ladder rather than gating everything behind a demo.
Does Spanvox publish under my own app store accounts?
Yes, and it goes further: your Apple Developer and Google Play accounts plus your own APNs and FCM push credentials, so the app and its notifications are fully yours.
Will my calls ring reliably?
Yes. Spanvox holds the upstream registration server-side and wakes the app with APNs/FCM through CallKit and ConnectionService, so calls ring even when the app is asleep, with the architecture explained rather than only claimed.
Can I migrate from Acrobits to Spanvox?
Yes. Because Spanvox registers to your existing PBX, you can stand up a branded app and BYOD endpoints in parallel and move tenants over without re-architecting your PBX or carrier setup.
When might Acrobits still be the better fit?
If you want a pure app SDK to embed in a platform you already operate, and you run your own registration, push and backend, Acrobits is a capable, established choice. Spanvox is for providers who want the whole bridge, push and multi-tenant platform run for them under their brand.
Try the alternative, free
Stand up a branded app and BYOD endpoints against your existing PBX, free, on one SIP domain. Move tenants over at your pace.